Materials Submitted to the Winneshiek County Board of Health


•   Notifying the Public of Risks to Their Health

•   Johns Hopkins University Study re the Gap Between What Is Known About Public Health Risks v. What Is Done to Protect the Public From the Known Health Risks

1.  Fry JP, Laestadius LI, Grechis C, Nachman KE, & Neff RA (2014, February).  Investigating the role of state permitting and agriculture agencies in addressing public health concerns related to industrial food animal production.  PLoS One, 9 (2): e89870.

•   MRSA Pathways Into the Community

•   University of Iowa Study Documenting First Research Evidence of MRSA in USA Swine & Swine Workers

2.  Smith TC, Male MJ, Harper AL, Kroeger JS, Tinkler GP, Moritz ED, Capuano AW, Herwaldt LA, & Diekema DJ (2009).  Methicillin-resistant Staphylococcus aureus (MRSA) strain ST398 is present in midwestern U.S. swine and swine workers.  PLoS One, 4 (1): e4258.

•   University of Iowa Study Indicating a Greater Risk of MRSA for Humans in Proximity to CAFOs

Media Report:

3.  McKenna M (2014, January 14).  Almost three times the risk of carrying MRSA from living near a mega-farm.  Wired.  Retrieved September 20, 2014, from

Published Study

4.  Carrel M, Schweizer ML, Sarrazin MV, Smith TC, & Perencevich EN (2014, February).  Residential proximity to large numbers of swine in feeding operations is associated with increased risk of methicillin-resistant Staphylococcus aureus colonization at time of hospital admission in rural Iowa veterans.  Infection Control and Hospital Epidemiology,35 (2): 190-193.

•   Johns Hopkins University Study Linking Exposure to Field Applications of CAFO Waste as Link to MRSA Infection

Media Report

5.  Johns Hopkins Bloomberg School of Public Health (2013, September 16).  Exposure to pig farms and manure fertilizers associated with MRSA infections.  Press release retrieved September 20, 2013 from

Published Study

6.  Casey JA, Curriero FC, Cosgrove SE, Nachman KE, & Schwartz BS (2013, November 25).  High-density livestock operations, crop field application of manure, and risk of community-associated methicillin-resistant Staphylococcus aureus infection in Pennsylvania.  JAMA Internal Medicine, 173 (21): 1980-1990.

•   Johns Hopkins University Study Investigating MRSA Molecular Types Found in Association With Exposure to CAFOs and to Field Applications of CAFO Wastes

7.  Casey JA, Shopsin B, Cosgrove SE, Nachman KE, Curriero FC, Rose HR, & Schwartz BS (2014, May).  High-density livestock production and molecularly characterized MRSA infections in PennsylvaniaEnvironmental Health Perspectives, 122 (5): 464-470.

University of Iowa Study Finding Swine MRSA in Iowa Wildlife

8.  Wardyn SE, Kaufmann LK, & Smith TC (2012, October).  Methicillin-resistant Staphylococcus aureus in central Iowa wildlife.  Journal of Wildlife Diseases, 48 (4): 1069-1073.

German Study – No MRSA Found in Swine Raised Using Conventional, pre-CAFO Methods & Environment

9.  Cuny C, Friedrich AW, & Witte W (2012, February).  Absence of livestock-associated methicillin-resistant Staphylococcus aureus clonal complex CC398 as a nasal colonizer of pigs raised in an alternative setting.  Applied and Environmental Microbiology, 78 (4): 1296-1297.

•   Human Health Hazards From CAFO Emissions

•   University of Iowa Studies focused on children living in rural Keokuk and rural Winneshiek County.

10. Merchant JA, Naleway AL, Swendsen ER, Kelly KM, Burmeister LF, Stromquist AM, Taylor CD, Thorne PS, Reynolds SJ, Sanderson WT, & Chrischilles EA (2005 March).  Asthma and farm exposures in a cohort of rural Iowa children.  Environmental Health Perspectives, 113(3): 350-356.

11. Sigurdarson ST & Kline JN (2006 June).  School proximity to concentrated animal feeding operations and prevalence of asthma in children.  Chest, 129(6): 1486-1491.

•   Research Studies, Reports, and Media Coverage

Bibliography of MRSA Research (268 Studies)

Bibliography of CAFO Research Studies, Discussions of Research, and Media Articles (192 Studies)